Mathieu Desnoyers <[EMAIL PROTECTED]> writes: > > The measurements I get (in cycles): > enable interrupts (STI) disable interrupts (CLI) local > CMPXCHG > IA32 (P4) 112 82 26 > x86_64 AMD64 125 102 19
What exactly did you benchmark here? On K8 CLI/STI are only supposed to be a few cycles. pushf/popf might me more expensive, but not that much. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
